ISP521-4 >
ISP521-4
Isocom Components 2004 LTD
16PIN TRANSISTOR OUTPUT, QUAD OP
1580 Pcs New Original In Stock
Optoisolator Transistor Output 5300Vrms 4 Channel 16-DIP
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ISP521-4 Isocom Components 2004 LTD
5.0 / 5.0 - (386 Ratings)

ISP521-4

Product Overview

1914953

DiGi Electronics Part Number

ISP521-4-DG
ISP521-4

Description

16PIN TRANSISTOR OUTPUT, QUAD OP

Inventory

1580 Pcs New Original In Stock
Optoisolator Transistor Output 5300Vrms 4 Channel 16-DIP
Quantity
Minimum 1

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In Stock (All prices are in USD)
  • QTY Target Price Total Price
  • 1000 0.5981 598.1220
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ISP521-4 Technical Specifications

Category Optoisolators, Transistor, Photovoltaic Output Optoisolators

Manufacturer Isocom Components

Packaging Tube

Series ISP521-4

Product Status Active

Number of Channels 4

Voltage - Isolation 5300Vrms

Current Transfer Ratio (Min) 50% @ 5mA

Current Transfer Ratio (Max) 600% @ 5mA

Turn On / Turn Off Time (Typ) -

Rise / Fall Time (Typ) 4µs, 3µs

Input Type DC

Output Type Transistor

Voltage - Output (Max) 55V

Current - Output / Channel 50mA

Voltage - Forward (Vf) (Typ) 1.15V

Current - DC Forward (If) (Max) 50 mA

Vce Saturation (Max) 400mV

Operating Temperature -30°C ~ 100°C

Mounting Type Through Hole

Package / Case 16-DIP (0.300", 7.62mm)

Supplier Device Package 16-DIP

Datasheet & Documents

HTML Datasheet

ISP521-4-DG

Environmental & Export Classification

RoHS Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8541.49.8000

Additional Information

Other Names
56-ISP521-4-DG
58-ISP521-4
56-ISP521-4
Standard Package
25

Alternative Models

PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
ISP521-4X
Isocom Components 2004 LTD
2000
ISP521-4X-DG
0.5134
Parametric Equivalent
ILQ621
Vishay Semiconductor Opto Division
1800
ILQ621-DG
1.1717
Similar

Reviews

5.0/5.0-(Show up to 5 Ratings)
Sunn***rizon
Dec 02, 2025
5.0
The shipping process is seamless and always on time.
Joyfu***nction
Dec 02, 2025
5.0
Helpful staff and efficient delivery made my shopping experience excellent.
Gleam***Grove
Dec 02, 2025
5.0
Their staff is exceptionally friendly and ready to help with any questions.
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Frequently Asked Questions (FAQ)

What is the main function of the ISP521-4 optoisolator?
The ISP521-4 is a 4-channel photovoltaic output optoisolator designed to provide electrical isolation and signal transmission between different circuits using transistor outputs, with an isolation voltage of 5300Vrms.
Is the ISP521-4 compatible with industrial control systems?
Yes, the ISP521-4 is suitable for industrial applications due to its high isolation voltage, robust transistor output, and wide operating temperature range from -30°C to 100°C.
What are the key features of the ISP521-4 optoisolator?
Key features include four channels with a current transfer ratio between 50% and 600%, a maximum output voltage of 55V, and a quick rise/fall time of around 3-4 microseconds, making it suitable for fast signal switching.
How is the ISP521-4 mounted and packaged?
The ISP521-4 is housed in a 16-DIP (dual in-line package) with through-hole mounting, making it easy to install on standard circuit boards.
Does the ISP521-4 comply with environmental and safety standards?
Yes, the ISP521-4 is RoHS3 compliant, REACH unaffected, and has a moisture sensitivity level of 1, indicating it is suitable for reliable operation in various environments.

Quality Assurance (QC)

DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.

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ISP521-4 CAD Models

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